2x^2+3+8=33(2x)

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Solution for 2x^2+3+8=33(2x) equation:


Simplifying
2x2 + 3 + 8 = 33(2x)

Reorder the terms:
3 + 8 + 2x2 = 33(2x)

Combine like terms: 3 + 8 = 11
11 + 2x2 = 33(2x)

Remove parenthesis around (2x)
11 + 2x2 = 33 * 2x

Multiply 33 * 2
11 + 2x2 = 66x

Solving
11 + 2x2 = 66x

Solving for variable 'x'.

Reorder the terms:
11 + -66x + 2x2 = 66x + -66x

Combine like terms: 66x + -66x = 0
11 + -66x + 2x2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
5.5 + -33x + x2 = 0

Move the constant term to the right:

Add '-5.5' to each side of the equation.
5.5 + -33x + -5.5 + x2 = 0 + -5.5

Reorder the terms:
5.5 + -5.5 + -33x + x2 = 0 + -5.5

Combine like terms: 5.5 + -5.5 = 0.0
0.0 + -33x + x2 = 0 + -5.5
-33x + x2 = 0 + -5.5

Combine like terms: 0 + -5.5 = -5.5
-33x + x2 = -5.5

The x term is -33x.  Take half its coefficient (-16.5).
Square it (272.25) and add it to both sides.

Add '272.25' to each side of the equation.
-33x + 272.25 + x2 = -5.5 + 272.25

Reorder the terms:
272.25 + -33x + x2 = -5.5 + 272.25

Combine like terms: -5.5 + 272.25 = 266.75
272.25 + -33x + x2 = 266.75

Factor a perfect square on the left side:
(x + -16.5)(x + -16.5) = 266.75

Calculate the square root of the right side: 16.332482971

Break this problem into two subproblems by setting 
(x + -16.5) equal to 16.332482971 and -16.332482971.

Subproblem 1

x + -16.5 = 16.332482971 Simplifying x + -16.5 = 16.332482971 Reorder the terms: -16.5 + x = 16.332482971 Solving -16.5 + x = 16.332482971 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16.5' to each side of the equation. -16.5 + 16.5 + x = 16.332482971 + 16.5 Combine like terms: -16.5 + 16.5 = 0.0 0.0 + x = 16.332482971 + 16.5 x = 16.332482971 + 16.5 Combine like terms: 16.332482971 + 16.5 = 32.832482971 x = 32.832482971 Simplifying x = 32.832482971

Subproblem 2

x + -16.5 = -16.332482971 Simplifying x + -16.5 = -16.332482971 Reorder the terms: -16.5 + x = -16.332482971 Solving -16.5 + x = -16.332482971 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16.5' to each side of the equation. -16.5 + 16.5 + x = -16.332482971 + 16.5 Combine like terms: -16.5 + 16.5 = 0.0 0.0 + x = -16.332482971 + 16.5 x = -16.332482971 + 16.5 Combine like terms: -16.332482971 + 16.5 = 0.167517029 x = 0.167517029 Simplifying x = 0.167517029

Solution

The solution to the problem is based on the solutions from the subproblems. x = {32.832482971, 0.167517029}

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